Seems like a sound driver issue.Since running the converter did you change your audio device? To like headphones or something?The game will ONLY run if the sound device that was used during the run of the converter is active whenever you open the game

Open the config file FF7Config.exe and set the sound driver in the sound tab.

This is true, but not in the case of using the Game Converter. He needs to run the GC again and wait for it to open FF7Config. Set it then, press OK, and let the GC finish its work with the key registry.

I am playing on Android the classic boy emulator and I've also tried a few others but the game freezes in the very beginning when the train is pulling up I then tried to get past that part by using the original iso file and then i reloaded the modded game and made it to when you jump off the train at reactor #2 and it froze again.

Ok I understand and I did figure out the what the problem was ( if you are having the same problem as me just remember it says the original 1998 so be sure you have the right copy) but I do have another question about the mod I believe it was roc4 I downloaded but I haven't noticed an increase in difficulty so is it just the retranslation?